#define yy_create_buffer base_yy_create_buffer
#define yy_delete_buffer base_yy_delete_buffer
#define yy_scan_buffer base_yy_scan_buffer
#define yy_scan_string base_yy_scan_string
#define yy_scan_bytes base_yy_scan_bytes
#define yy_flex_debug base_yy_flex_debug
#define yy_init_buffer base_yy_init_buffer
#define yy_flush_buffer base_yy_flush_buffer
#define yy_load_buffer_state base_yy_load_buffer_state
#define yy_switch_to_buffer base_yy_switch_to_buffer
#define yyin base_yyin
#define yyleng base_yyleng
#define yylex base_yylex
#define yyout base_yyout
#define yyrestart base_yyrestart
#define yytext base_yytext

/* A lexical scanner generated by flex */

/* Scanner skeleton version:
 * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.85 95/04/24 10:48:47 vern Exp $
 */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5

#include <stdio.h>


/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
#ifdef c_plusplus
#ifndef __cplusplus
#define __cplusplus
#endif
#endif


#ifdef __cplusplus

#include <stdlib.h>
#include <unistd.h>

/* Use prototypes in function declarations. */
#define YY_USE_PROTOS

/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST

#else	/* ! __cplusplus */

#if __STDC__

#define YY_USE_PROTOS
#define YY_USE_CONST

#endif	/* __STDC__ */
#endif	/* ! __cplusplus */

#ifdef __TURBOC__
 #pragma warn -rch
 #pragma warn -use
#include <io.h>
#include <stdlib.h>
#define YY_USE_CONST
#define YY_USE_PROTOS
#endif

#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif


#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
#endif

/* Returned upon end-of-file. */
#define YY_NULL 0

/* Promotes a possibly negative, possibly signed char to an unsigned
 * integer for use as an array index.  If the signed char is negative,
 * we want to instead treat it as an 8-bit unsigned char, hence the
 * double cast.
 */
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)

/* Enter a start condition.  This macro really ought to take a parameter,
 * but we do it the disgusting crufty way forced on us by the ()-less
 * definition of BEGIN.
 */
#define BEGIN yy_start = 1 + 2 *

/* Translate the current start state into a value that can be later handed
 * to BEGIN to return to the state.  The YYSTATE alias is for lex
 * compatibility.
 */
#define YY_START ((yy_start - 1) / 2)
#define YYSTATE YY_START

/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE yyrestart( yyin )

#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#define YY_BUF_SIZE 16384

typedef struct yy_buffer_state *YY_BUFFER_STATE;

extern int yyleng;
extern FILE *yyin, *yyout;

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2

/* The funky do-while in the following #define is used to turn the definition
 * int a single C statement (which needs a semi-colon terminator).  This
 * avoids problems with code like:
 *
 * 	if ( condition_holds )
 *		yyless( 5 );
 *	else
 *		do_something_else();
 *
 * Prior to using the do-while the compiler would get upset at the
 * "else" because it interpreted the "if" statement as being all
 * done when it reached the ';' after the yyless() call.
 */

/* Return all but the first 'n' matched characters back to the input stream. */

#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
		*yy_cp = yy_hold_char; \
		yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
		} \
	while ( 0 )

#define unput(c) yyunput( c, yytext_ptr )

/* The following is because we cannot portably get our hands on size_t
 * (without autoconf's help, which isn't available because we want
 * flex-generated scanners to compile on their own).
 */
typedef unsigned int yy_size_t;


struct yy_buffer_state
	{
	FILE *yy_input_file;

	char *yy_ch_buf;		/* input buffer */
	char *yy_buf_pos;		/* current position in input buffer */

	/* Size of input buffer in bytes, not including room for EOB
	 * characters.
	 */
	yy_size_t yy_buf_size;

	/* Number of characters read into yy_ch_buf, not including EOB
	 * characters.
	 */
	int yy_n_chars;

	/* Whether we "own" the buffer - i.e., we know we created it,
	 * and can realloc() it to grow it, and should free() it to
	 * delete it.
	 */
	int yy_is_our_buffer;

	/* Whether this is an "interactive" input source; if so, and
	 * if we're using stdio for input, then we want to use getc()
	 * instead of fread(), to make sure we stop fetching input after
	 * each newline.
	 */
	int yy_is_interactive;

	/* Whether we're considered to be at the beginning of a line.
	 * If so, '^' rules will be active on the next match, otherwise
	 * not.
	 */
	int yy_at_bol;

	/* Whether to try to fill the input buffer when we reach the
	 * end of it.
	 */
	int yy_fill_buffer;

	int yy_buffer_status;
#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
	/* When an EOF's been seen but there's still some text to process
	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
	 * shouldn't try reading from the input source any more.  We might
	 * still have a bunch of tokens to match, though, because of
	 * possible backing-up.
	 *
	 * When we actually see the EOF, we change the status to "new"
	 * (via yyrestart()), so that the user can continue scanning by
	 * just pointing yyin at a new input file.
	 */
#define YY_BUFFER_EOF_PENDING 2
	};

static YY_BUFFER_STATE yy_current_buffer = 0;

/* We provide macros for accessing buffer states in case in the
 * future we want to put the buffer states in a more general
 * "scanner state".
 */
#define YY_CURRENT_BUFFER yy_current_buffer


/* yy_hold_char holds the character lost when yytext is formed. */
static char yy_hold_char;

static int yy_n_chars;		/* number of characters read into yy_ch_buf */


int yyleng;

/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 1;		/* whether we need to initialize */
static int yy_start = 0;	/* start state number */

/* Flag which is used to allow yywrap()'s to do buffer switches
 * instead of setting up a fresh yyin.  A bit of a hack ...
 */
static int yy_did_buffer_switch_on_eof;

void yyrestart YY_PROTO(( FILE *input_file ));

void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
void yy_load_buffer_state YY_PROTO(( void ));
YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer )

YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size ));
YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *str ));
YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));

static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
static void yy_flex_free YY_PROTO(( void * ));

#define yy_new_buffer yy_create_buffer

#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_is_interactive = is_interactive; \
	}

#define yy_set_bol(at_bol) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_at_bol = at_bol; \
	}

#define YY_AT_BOL() (yy_current_buffer->yy_at_bol)


#define yywrap() 1
#define YY_SKIP_YYWRAP
typedef unsigned char YY_CHAR;
FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
typedef int yy_state_type;
extern char *yytext;
#define yytext_ptr yytext

static yy_state_type yy_get_previous_state YY_PROTO(( void ));
static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state ));
static int yy_get_next_buffer YY_PROTO(( void ));
static void yy_fatal_error YY_PROTO(( yyconst char msg[] ));

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yytext.
 */
#define YY_DO_BEFORE_ACTION \
	yytext_ptr = yy_bp; \
	yyleng = (int) (yy_cp - yy_bp); \
	yy_hold_char = *yy_cp; \
	*yy_cp = '\0'; \
	yy_c_buf_p = yy_cp;

#define YY_NUM_RULES 27
#define YY_END_OF_BUFFER 28
static yyconst short int yy_accept[78] =
    {   0,
        0,    0,    0,    0,    0,    0,    0,    0,   28,   26,
        1,    1,   18,   13,   26,   17,    3,   17,   17,   17,
       20,   25,   25,   25,    8,    8,    5,   12,   16,   14,
        7,    5,    1,   18,   19,    1,   21,   21,   20,   23,
       25,    4,    2,    8,    5,    5,    6,    0,    9,    0,
       16,   15,    7,    1,    1,   21,   24,   22,    5,   11,
        0,    5,    9,   10,    5,    5,    5,    5,    9,   10,
        5,    5,    5,    5,    5,    5,    0
    } ;

static yyconst int yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    2,    4,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    5,    6,    5,    7,    8,    5,    9,   10,
       10,    8,   11,   10,   12,   13,    8,   14,   14,   14,
       14,   14,   14,   14,   14,   15,   15,   10,   10,    8,
        8,    8,    5,    5,   16,   16,   16,   16,   17,   16,
       18,   18,   18,   18,   18,   18,   18,   19,   18,   18,
       18,   18,   18,   18,   18,   18,   18,   18,   18,   18,
       10,   20,   10,    8,   18,    5,   16,   16,   16,   16,

       17,   16,   18,   18,   18,   18,   18,   18,   18,   19,
       18,   18,   18,   18,   18,   18,   18,   18,   18,   21,
       18,   18,    1,    5,    1,    5,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1
    } ;

static yyconst int yy_meta[22] =
    {   0,
        1,    2,    3,    3,    4,    5,    6,    4,    7,    1,
        4,    8,    1,    9,    9,    9,    9,    6,    6,   10,
        6
    } ;

static yyconst short int yy_base[92] =
    {   0,
        0,    0,   19,   20,   99,   94,   90,   89,   97,  306,
       22,   28,    0,  306,   19,    0,  306,  306,   84,   21,
       28,    0,   86,   85,    0,    0,   44,   23,    0,   83,
        0,    0,   47,    0,   40,   52,   44,   51,    0,   58,
        0,  306,  306,    0,   79,   62,  306,   68,   53,    0,
        0,  306,    0,    0,   70,   62,   69,   71,   78,  306,
       50,   89,   38,    0,  100,  111,  122,  133,  306,  306,
      144,  155,    0,  166,  177,  188,  306,  200,  210,  220,
      227,  230,  239,  248,  258,  268,  277,   29,  285,   18,
      295

    } ;

static yyconst short int yy_def[92] =
    {   0,
       77,    1,   78,   78,   79,   79,   80,   80,   77,   77,
       77,   77,   81,   77,   77,   81,   77,   77,   81,   77,
       77,   82,   82,   82,   83,   83,   77,   77,   84,   77,
       85,   27,   77,   81,   77,   86,   77,   77,   21,   77,
       82,   77,   77,   83,   27,   87,   77,   77,   77,   88,
       84,   77,   85,   86,   86,   77,   77,   77,   87,   77,
       77,   89,   77,   90,   91,   89,   89,   89,   77,   77,
       91,   91,   59,   91,   89,   91,    0,   77,   77,   77,
       77,   77,   77,   77,   77,   77,   77,   77,   77,   77,
       77

    } ;

static yyconst short int yy_nxt[328] =
    {   0,
       10,   11,   12,   11,   13,   14,   15,   16,   17,   18,
       16,   19,   20,   21,   21,   22,   23,   22,   24,   10,
       22,   26,   26,   33,   33,   33,   70,   27,   27,   33,
       33,   33,   35,   35,   37,   37,   49,   64,   28,   28,
       38,   39,   39,   50,   40,   45,   46,   46,   33,   33,
       33,   69,   47,   35,   35,   48,   55,   37,   37,   55,
       40,   65,   55,   55,   56,   56,   63,   40,   57,   57,
       60,   58,   58,   61,   55,   56,   56,   55,   40,   62,
       55,   55,   58,   58,   58,   58,   60,   77,   52,   61,
       67,   46,   46,   43,   42,   36,   77,   32,   32,   30,

       68,   72,   73,   73,   30,   77,   77,   77,   77,   77,
       77,   74,   67,   46,   46,   77,   77,   77,   77,   77,
       77,   77,   68,   67,   46,   46,   77,   77,   77,   77,
       77,   77,   77,   68,   67,   46,   46,   77,   77,   77,
       77,   77,   77,   77,   75,   72,   73,   73,   77,   77,
       77,   77,   77,   77,   77,   74,   72,   73,   73,   77,
       77,   77,   77,   77,   77,   77,   74,   72,   73,   73,
       77,   77,   77,   77,   77,   77,   77,   76,   67,   46,
       46,   77,   77,   77,   77,   77,   77,   77,   75,   72,
       73,   73,   77,   77,   77,   77,   77,   77,   77,   76,

       25,   25,   25,   25,   25,   25,   25,   25,   25,   25,
       29,   29,   29,   29,   29,   29,   29,   29,   29,   29,
       31,   31,   31,   31,   31,   31,   31,   31,   31,   31,
       34,   77,   77,   77,   34,   41,   77,   77,   41,   44,
       44,   44,   44,   44,   44,   77,   44,   44,   51,   51,
       51,   51,   77,   51,   51,   51,   51,   51,   53,   53,
       53,   53,   53,   53,   77,   53,   53,   53,   54,   54,
       77,   54,   54,   54,   54,   54,   54,   54,   59,   59,
       77,   77,   77,   59,   59,   66,   66,   66,   66,   66,
       66,   66,   66,   66,   66,   71,   71,   71,   71,   71,

       71,   71,   71,   71,   71,    9,   77,   77,   77,   77,
       77,   77,   77,   77,   77,   77,   77,   77,   77,   77,
       77,   77,   77,   77,   77,   77,   77
    } ;

static yyconst short int yy_chk[328] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    3,    4,   11,   11,   11,   90,    3,    4,   12,
       12,   12,   15,   15,   20,   20,   28,   88,    3,    4,
       21,   21,   21,   28,   21,   27,   27,   27,   33,   33,
       33,   63,   27,   35,   35,   27,   36,   37,   37,   36,
       37,   61,   36,   36,   38,   38,   49,   38,   40,   40,
       46,   40,   40,   46,   55,   56,   56,   55,   56,   48,
       55,   55,   57,   57,   58,   58,   59,   45,   30,   59,
       62,   62,   62,   24,   23,   19,    9,    8,    7,    6,

       62,   65,   65,   65,    5,    0,    0,    0,    0,    0,
        0,   65,   66,   66,   66,    0,    0,    0,    0,    0,
        0,    0,   66,   67,   67,   67,    0,    0,    0,    0,
        0,    0,    0,   67,   68,   68,   68,    0,    0,    0,
        0,    0,    0,    0,   68,   71,   71,   71,    0,    0,
        0,    0,    0,    0,    0,   71,   72,   72,   72,    0,
        0,    0,    0,    0,    0,    0,   72,   74,   74,   74,
        0,    0,    0,    0,    0,    0,    0,   74,   75,   75,
       75,    0,    0,    0,    0,    0,    0,    0,   75,   76,
       76,   76,    0,    0,    0,    0,    0,    0,    0,   76,

       78,   78,   78,   78,   78,   78,   78,   78,   78,   78,
       79,   79,   79,   79,   79,   79,   79,   79,   79,   79,
       80,   80,   80,   80,   80,   80,   80,   80,   80,   80,
       81,    0,    0,    0,   81,   82,    0,    0,   82,   83,
       83,   83,   83,   83,   83,    0,   83,   83,   84,   84,
       84,   84,    0,   84,   84,   84,   84,   84,   85,   85,
       85,   85,   85,   85,    0,   85,   85,   85,   86,   86,
        0,   86,   86,   86,   86,   86,   86,   86,   87,   87,
        0,    0,    0,   87,   87,   89,   89,   89,   89,   89,
       89,   89,   89,   89,   89,   91,   91,   91,   91,   91,

       91,   91,   91,   91,   91,   77,   77,   77,   77,   77,
       77,   77,   77,   77,   77,   77,   77,   77,   77,   77,
       77,   77,   77,   77,   77,   77,   77
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
char *yytext;
#define INITIAL 0
/*-------------------------------------------------------------------------
 *
 * scan.l
 *	  lexical scanner for openPlant
 *
 * NOTE NOTE NOTE:
 *
 * The rules in this file must be kept in sync with psql's lexer!!!
 *
 * The rules are designed so that the scanner never has to backtrack,
 * in the sense that there is always a rule that can match the input
 * consumed so far (the rule action may internally throw back some input
 * with yyless(), however).  As explained in the flex manual, this makes
 * for a useful speed increase --- about a third faster than a plain -CF
 * lexer, in simple testing.  The extra complexity is mostly in the rules
 * for handling float numbers and continued string literals.  If you change
 * the lexical rules, verify that you haven't broken the no-backtrack
 * property by running flex with the "-b" option and checking that the
 * resulting "lex.backup" file says that no backing up is needed.
 *
 *
 *-------------------------------------------------------------------------
 */

#include "primary_include_file.h"
#include <ctype.h>
#include "mb/op_wchar.h"
#include "parser/scansup.h"
#include "parser/gramparse.h"

#include "parser/keywords.h"

/* Avoid exit() on fatal scanner errors (a bit ugly -- see yy_fatal_error)
#undef fprintf
#define fprintf(file, fmt, msg)  ereport(ERROR, (errmsg_internal("%s", msg))) */

/* _line_48 */
static int		xcdepth = 0;	/* depth of nesting in slash-star comments */
static char    *dolqstart;      /* current $foo$ quote start string */

/*
 * GUC variables.  This is a DIRECT violation of the warning given at the
 * head of gram.y, ie flex/bison code must not depend on any GUC variables;
 * as such, changing their values can induce very unintuitive behavior.
 * But we shall have to live with it as a short-term thing until the switch
 * to SQL-standard string syntax is complete.
 */
 /* _line_59 */
bool escape_string_warning = true;
bool standard_conforming_strings = false;

/* _line_62 */
static bool warn_on_first_escape;
static bool saw_non_ascii = false;

/*
 * literalbuf is used to accumulate literal values when multiple rules
 * are needed to parse a single literal.  Call startlit to reset buffer
 * to empty, addlit to add text.  Note that the buffer is malloc'd and
 * starts life afresh on every parse cycle.
 */
static char *literalbuf;  /* expandable buffer */
static int literallen;  /* actual current length */
static int literalalloc;  /* current allocated buffer size */

#define startlit()  (literalbuf[0] = '\0', literallen = 0)
static void addlit(char *ytext, int yleng);
static void addlitchar(unsigned char ychar);
static char *litbufdup(void);

static int	lexer_errposition(void);

/*
 * Each call to yylex must set yylloc to the location of the found token
 * (expressed as a byte offset from the start of the input text).
 * When we parse a token that requires multiple lexer rules to process,
 * this should be done in the first such rule, else yylloc will point
 * into the middle of the token.
 */
#define SET_YYLLOC()  (yylloc = yytext - scanbuf)

/* Handles to the buffer that the lexer uses internally */
static YY_BUFFER_STATE scanbufhandle;
static char *scanbuf;

static unsigned char unescape_single_char(unsigned char c);

#define YY_NEVER_INTERACTIVE 1
#define YY_NO_UNPUT 1
/*
 * OK, here is a short description of lex/flex rules behavior.
 * The longest pattern which matches an input string is always chosen.
 * For equal-length patterns, the first occurring in the rules list is chosen.
 * INITIAL is the starting state, to which all non-conditional rules apply.
 * Exclusive states change parsing rules while the state is active.  When in
 * an exclusive state, only those rules defined for that state apply.
 *
 * We use exclusive states for quoted strings, extended comments,
 * and to eliminate parsing troubles for numeric strings.
 * Exclusive states:
 *  <xq> standard quoted strings
 *  <xd> delimited identifiers (double-quoted identifiers)
 *  <xe> extended quoted strings (support backslash escape sequences)
 */
#define xe 1

#define xd 2

#define xq 3

/*
 * In order to make the world safe for Windows and Mac clients as well as
 * Unix ones, we accept either \n or \r as a newline.  A DOS-style \r\n
 * sequence will be seen as two successive newlines, but that doesn't cause
 * any problems.  Comments that start with -- and extend to the next
 * newline are treated as equivalent to a single whitespace character.
 *
 * NOTE a fine point: if there is no newline following --, we will absorb
 * everything to the end of the input as a comment.  This is correct.  Older
 * versions of Postgres failed to recognize -- as a comment if the input
 * did not end with a newline.
 *
 * XXX perhaps \f (formfeed) should be treated as a newline as well?
 *
 * XXX if you change the set of whitespace characters, fix scanner_isspace()
 * to agree, and see also the plpgsql lexer.
 */
/*
 * SQL requires at least one newline in the whitespace separating
 * string literals that are to be concatenated.  Silly, but who are we
 * to argue?  Note that {whitespace_with_newline} should not have * after
 * it, whereas {whitespace} should generally have a * after it...
 */
/*
 * To ensure that {quotecontinue} can be scanned without having to back up
 * if the full pattern isn't matched, we include trailing whitespace in
 * {quotestop}.  This matches all cases where {quotecontinue} fails to match,
 * except for {quote} followed by whitespace and just one "-" (not two,
 * which would start a {comment}).  To cover that we have {quotefail}.
 * The actions for {quotestop} and {quotefail} must throw back characters
 * beyond the quote proper.
 */
/* National character */
/* Quoted string that allows backslash escapes */
/* Extended quote
 * xqdouble implements embedded quote, ''''
 */
/* Double quote
 * Allows embedded spaces and other special characters into identifiers.
 */
/*
 * "self" is the set of chars that should be returned as single-character
 * tokens.  "op_chars" is the set of chars that can make up "Op" tokens,
 * which can be one or more characters long (but if a single-char token
 * appears in the "self" set, it is not to be returned as an Op).  Note
 * that the sets overlap, but each has some chars that are not in the other.
 *
 * If you change either set, adjust the character lists appearing in the
 * rule for "operator"!
 */
/* we no longer allow unary minus in numbers. 
 * instead we pass it separately to parser. there it gets
 * coerced via doNegate() -- Leon aug 20 1999
 *
 * {realfail1} and {realfail2} are added to prevent the need for scanner
 * backup when the {real} rule fails to match completely.
 */
/*
 * Dollar quoted strings are totally opaque, and no escaping is done on them.
 * Other quoted strings must allow some special characters such as single-quote
 *  and newline.
 * Embedded single-quotes are implemented both in the SQL standard
 *  style of two adjacent single quotes "''" and in the Postgres/Java style
 *  of escaped-quote "\'".
 * Other embedded escaped characters are matched explicitly and the leading
 *  backslash is dropped from the string.
 * Note that xcstart must appear before operator, as explained above!
 *  Also whitespace (comment) must appear before operator.
 */

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif

#ifndef YY_NO_UNPUT
static void yyunput YY_PROTO(( int c, char *buf_ptr ));
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
#endif

#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
#endif

#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif

#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif

#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines.  This will fail
 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
 * or sizeof(void*) != sizeof(int).
 */
#endif
#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */

#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	if ( yy_current_buffer->yy_is_interactive ) \
		{ \
		int c = '*', n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
		  && ferror( yyin ) ) \
		YY_FATAL_ERROR( "input in flex scanner failed" );
#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif

/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL int yylex YY_PROTO(( void ))
#endif

/* Code executed at the beginning of each rule, after yytext and yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif

/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif

#define YY_RULE_SETUP \
	YY_USER_ACTION

YY_DECL
	{
	register yy_state_type yy_current_state;
	register char *yy_cp, *yy_bp;
	register int yy_act;




	if ( yy_init )
		{
		yy_init = 0;

#ifdef YY_USER_INIT
		YY_USER_INIT;
#endif

		if ( ! yy_start )
			yy_start = 1;	/* first start state */

		if ( ! yyin )
			yyin = stdin;

		if ( ! yyout )
			yyout = stdout;

		if ( ! yy_current_buffer )
			yy_current_buffer =
				yy_create_buffer( yyin, YY_BUF_SIZE );

		yy_load_buffer_state();
		}

	while ( 1 )		/* loops until end-of-file is reached */
		{
		yy_cp = yy_c_buf_p;

		/* Support of yytext. */
		*yy_cp = yy_hold_char;

		/* yy_bp points to the position in yy_ch_buf of the start of
		 * the current run.
		 */
		yy_bp = yy_cp;

		yy_current_state = yy_start;
yy_match:
		do
			{
			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
			if ( yy_accept[yy_current_state] )
				{
				yy_last_accepting_state = yy_current_state;
				yy_last_accepting_cpos = yy_cp;
				}
			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
				{
				yy_current_state = (int) yy_def[yy_current_state];
				if ( yy_current_state >= 78 )
					yy_c = yy_meta[(unsigned int) yy_c];
				}
			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
			++yy_cp;
			}
		while ( yy_base[yy_current_state] != 306 );

yy_find_action:
		yy_act = yy_accept[yy_current_state];
		if ( yy_act == 0 )
			{ /* have to back up */
			yy_cp = yy_last_accepting_cpos;
			yy_current_state = yy_last_accepting_state;
			yy_act = yy_accept[yy_current_state];
			}

		YY_DO_BEFORE_ACTION;


do_action:	/* This label is used only to access EOF actions. */


		switch ( yy_act )
	{ /* beginning of action switch */
			case 0: /* must back up */
			/* undo the effects of YY_DO_BEFORE_ACTION */
			*yy_cp = yy_hold_char;
			yy_cp = yy_last_accepting_cpos;
			yy_current_state = yy_last_accepting_state;
			goto yy_find_action;

case 1:
YY_RULE_SETUP
{
  /* ignore */
}
	YY_BREAK
case 2:
YY_RULE_SETUP
{
  /* National character.
   * We will pass this along as a normal character string,
   * but preceded with an internally-generated "NCHAR".
   */
  const ScanKeyword *keyword;
  SET_YYLLOC();
  yyless(1);  /* eat only 'n' this time */
  /* nchar had better be a keyword! */
  keyword = ScanKeywordLookup("nchar");
  yylval.keyword = keyword->name;
  return keyword->value;
}
	YY_BREAK
case 3:
YY_RULE_SETUP
{
  warn_on_first_escape = true;
  saw_non_ascii = false;
  SET_YYLLOC();
  if (standard_conforming_strings)
    BEGIN(xq);
  else
    BEGIN(xe);
  startlit();
}
	YY_BREAK
case 4:
YY_RULE_SETUP
{
  warn_on_first_escape = false;
  saw_non_ascii = false;
  SET_YYLLOC();
  BEGIN(xe);
  startlit();
}
	YY_BREAK
case 5:
case 6:
YY_RULE_SETUP
{
  addlitchar('\'');
}
	YY_BREAK
case 7:
YY_RULE_SETUP
{
  addlit(yytext, yyleng);
}
	YY_BREAK
case 8:
YY_RULE_SETUP
{
  addlit(yytext, yyleng);
}
	YY_BREAK
case 9:
YY_RULE_SETUP
{
  unsigned char c = strtoul(yytext+1, NULL, 8);
  /* we should check_escape here, but not yet */
  addlitchar(c);
  if (IS_HIGHBIT_SET(c))
  saw_non_ascii = true;
}
	YY_BREAK
case 10:
YY_RULE_SETUP
{
  unsigned char c = strtoul(yytext+2, NULL, 16);
  /* we should check_escape here, but not yet */
  addlitchar(c);
  if (IS_HIGHBIT_SET(c))
  saw_non_ascii = true;
}
	YY_BREAK
case 11:
YY_RULE_SETUP
{
  /* ignore */
}
	YY_BREAK
case 12:
YY_RULE_SETUP
{
  /* This is only needed for \ just before EOF */
  addlitchar(yytext[0]);
}
	YY_BREAK
case YY_STATE_EOF(xq):
case YY_STATE_EOF(xe):
{ yyerror("unterminated quoted string"); }
	YY_BREAK
case 13:
YY_RULE_SETUP
{
  SET_YYLLOC();
  BEGIN(xd);
  startlit();
}
	YY_BREAK
case 14:
YY_RULE_SETUP
{
  char *ident;
  BEGIN(INITIAL);
  if (literallen == 0)
    yyerror("zero-length delimited identifier");
  ident = litbufdup();
  if (literallen >= 64)
    /* truncate_identifier(ident, literallen, true)*/
    ;
  yylval.str = ident;
  return IDENT;
}
	YY_BREAK
case 15:
YY_RULE_SETUP
{
  addlitchar('"');
}
	YY_BREAK
case 16:
YY_RULE_SETUP
{
  addlit(yytext, yyleng);
}
	YY_BREAK
case YY_STATE_EOF(xd):
{ yyerror("unterminated quoted identifier"); }
	YY_BREAK
case 17:
YY_RULE_SETUP
{
  SET_YYLLOC();
  return yytext[0];
}
	YY_BREAK
case 18:
YY_RULE_SETUP
{
  /*
   * Check for embedded slash-star or dash-dash; those
   * are comment starts, so operator must stop there.
   * Note that slash-star or dash-dash at the first
   * character will match a prior rule, not this one.
   */
  int nchars = yyleng;
  char  *slashstar = strstr(yytext, "/*");
  char  *dashdash = strstr(yytext, "--");
  if (slashstar && dashdash)
  {
    /* if both appear, take the first one */
    if (slashstar > dashdash)
    slashstar = dashdash;
  }
  else if (!slashstar)
    slashstar = dashdash;
  if (slashstar)
    nchars = slashstar - yytext;
  /*
   * For SQL compatibility, '+' and '-' cannot be the
   * last char of a multi-char operator unless the operator
   * contains chars that are not in SQL operators.
   * The idea is to lex '=-' as two operators, but not
   * to forbid operator names like '?-' that could not be
   * sequences of SQL operators.
   */
  while (nchars > 1 && (yytext[nchars-1] == '+' || yytext[nchars-1] == '-'))
  {
    int	ic;
    for (ic = nchars-2; ic >= 0; ic--)
    {
      if (strchr("~!@#^&|`?%", yytext[ic]))
        break;
    }
    if (ic >= 0)
      break; /* found a char that makes it OK */
    nchars--; /* else remove the +/-, and check again */
  }
  
  SET_YYLLOC();
  if (nchars < yyleng)
  {
    /* Strip the unwanted chars from the token */
    yyless(nchars);
    /*
     * If what we have left is only one char, and it's
     * one of the characters matching "self", then
     * return it as a character token the same way
     * that the "self" rule would have.
     */
    if (nchars == 1 &&
    strchr(",()[].;:+-*/%^<>=", yytext[0]))
    return yytext[0];
  }
  /*
   * Complain if operator is too long.  Unlike the case
   * for identifiers, we make this an error not a notice-
   * and-truncate, because the odds are we are looking at
   * a syntactic mistake anyway.
   */
  if (nchars >= 64)
    yyerror("operator too long");
  /* Convert "!=" operator to "<>" for compatibility */
  if (strcmp(yytext, "!=") == 0)
    yylval.str = strdup("<>");
  else
    yylval.str = strdup(yytext);
  return Op;
}
	YY_BREAK
case 19:
YY_RULE_SETUP
{
  SET_YYLLOC();
  yylval.ival = atol(yytext + 1);
  return PARAM;
}
	YY_BREAK
case 20:
YY_RULE_SETUP
{
  long val;
  char* endptr;
  SET_YYLLOC();
  errno = 0;
  val = strtol(yytext, &endptr, 10);
  if (*endptr != '\0' || errno == ERANGE
#ifdef HAVE_LONG_INT_64
  /* if long > 32 bits, check for overflow of int4 */
  || val != (long) ((int32) val)
#endif
  )  {
    /* integer too large, treat it as a float */
    yylval.str = strdup(yytext);
    return FCONST;
  }
  yylval.ival = val;
  return ICONST;
}
	YY_BREAK
case 21:
YY_RULE_SETUP
{
  SET_YYLLOC();
  yylval.str = strdup(yytext);
  return FCONST;
}
	YY_BREAK
case 22:
YY_RULE_SETUP
{
  SET_YYLLOC();
  yylval.str = strdup(yytext);
  return FCONST;
}
	YY_BREAK
case 23:
YY_RULE_SETUP
{
  /*
   * throw back the [Ee], and treat as {decimal}.  Note
   * that it is possible the input is actually {integer},
   * but since this case will almost certainly lead to a
   * syntax error anyway, we don't bother to distinguish.
   */
  yyless(yyleng-1);
  SET_YYLLOC();
  yylval.str = strdup(yytext);
  return FCONST;
}
	YY_BREAK
case 24:
YY_RULE_SETUP
{
  /* throw back the [Ee][+-], and proceed as above */
  yyless(yyleng-2);
  SET_YYLLOC();
  yylval.str = strdup(yytext);
  return FCONST;
}
	YY_BREAK
case 25:
YY_RULE_SETUP
{
  const ScanKeyword *keyword;
  char *ident;
  SET_YYLLOC();
  /* Is it a keyword? */
  keyword = ScanKeywordLookup(yytext);
  if (keyword != NULL)
  {
    yylval.keyword = keyword->name;
    return keyword->value;
  }
  /*
   * No.  Convert the identifier to lower case, and truncate
   * if necessary.
   */
  ident = downcase_truncate_identifier(yytext, yyleng, true);
  yylval.str = ident;
  return IDENT;
}
	YY_BREAK
case 26:
YY_RULE_SETUP
{
  SET_YYLLOC();
  return yytext[0];
}
	YY_BREAK
case YY_STATE_EOF(INITIAL):
{
  SET_YYLLOC();
  yyterminate();
}
	YY_BREAK
case 27:
YY_RULE_SETUP
YY_FATAL_ERROR( "flex scanner jammed" );
	YY_BREAK

	case YY_END_OF_BUFFER:
		{
		/* Amount of text matched not including the EOB char. */
		int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1;

		/* Undo the effects of YY_DO_BEFORE_ACTION. */
		*yy_cp = yy_hold_char;

		if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW )
			{
			/* We're scanning a new file or input source.  It's
			 * possible that this happened because the user
			 * just pointed yyin at a new source and called
			 * yylex().  If so, then we have to assure
			 * consistency between yy_current_buffer and our
			 * globals.  Here is the right place to do so, because
			 * this is the first action (other than possibly a
			 * back-up) that will match for the new input source.
			 */
			yy_n_chars = yy_current_buffer->yy_n_chars;
			yy_current_buffer->yy_input_file = yyin;
			yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
			}

		/* Note that here we test for yy_c_buf_p "<=" to the position
		 * of the first EOB in the buffer, since yy_c_buf_p will
		 * already have been incremented past the NUL character
		 * (since all states make transitions on EOB to the
		 * end-of-buffer state).  Contrast this with the test
		 * in input().
		 */
		if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
			{ /* This was really a NUL. */
			yy_state_type yy_next_state;

			yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;

			yy_current_state = yy_get_previous_state();

			/* Okay, we're now positioned to make the NUL
			 * transition.  We couldn't have
			 * yy_get_previous_state() go ahead and do it
			 * for us because it doesn't know how to deal
			 * with the possibility of jamming (and we don't
			 * want to build jamming into it because then it
			 * will run more slowly).
			 */

			yy_next_state = yy_try_NUL_trans( yy_current_state );

			yy_bp = yytext_ptr + YY_MORE_ADJ;

			if ( yy_next_state )
				{
				/* Consume the NUL. */
				yy_cp = ++yy_c_buf_p;
				yy_current_state = yy_next_state;
				goto yy_match;
				}

			else
				{
				yy_cp = yy_c_buf_p;
				goto yy_find_action;
				}
			}

		else switch ( yy_get_next_buffer() )
			{
			case EOB_ACT_END_OF_FILE:
				{
				yy_did_buffer_switch_on_eof = 0;

				if ( yywrap() )
					{
					/* Note: because we've taken care in
					 * yy_get_next_buffer() to have set up
					 * yytext, we can now set up
					 * yy_c_buf_p so that if some total
					 * hoser (like flex itself) wants to
					 * call the scanner after we return the
					 * YY_NULL, it'll still work - another
					 * YY_NULL will get returned.
					 */
					yy_c_buf_p = yytext_ptr + YY_MORE_ADJ;

					yy_act = YY_STATE_EOF(YY_START);
					goto do_action;
					}

				else
					{
					if ( ! yy_did_buffer_switch_on_eof )
						YY_NEW_FILE;
					}
				break;
				}

			case EOB_ACT_CONTINUE_SCAN:
				yy_c_buf_p =
					yytext_ptr + yy_amount_of_matched_text;

				yy_current_state = yy_get_previous_state();

				yy_cp = yy_c_buf_p;
				yy_bp = yytext_ptr + YY_MORE_ADJ;
				goto yy_match;

			case EOB_ACT_LAST_MATCH:
				yy_c_buf_p =
				&yy_current_buffer->yy_ch_buf[yy_n_chars];

				yy_current_state = yy_get_previous_state();

				yy_cp = yy_c_buf_p;
				yy_bp = yytext_ptr + YY_MORE_ADJ;
				goto yy_find_action;
			}
		break;
		}

	default:
		YY_FATAL_ERROR(
			"fatal flex scanner internal error--no action found" );
	} /* end of action switch */
		} /* end of scanning one token */
	} /* end of yylex */


/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *	EOB_ACT_LAST_MATCH -
 *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *	EOB_ACT_END_OF_FILE - end of file
 */

static int yy_get_next_buffer()
	{
	register char *dest = yy_current_buffer->yy_ch_buf;
	register char *source = yytext_ptr;
	register int number_to_move, i;
	int ret_val;

	if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] )
		YY_FATAL_ERROR(
		"fatal flex scanner internal error--end of buffer missed" );

	if ( yy_current_buffer->yy_fill_buffer == 0 )
		{ /* Don't try to fill the buffer, so this is an EOF. */
		if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 )
			{
			/* We matched a singled characater, the EOB, so
			 * treat this as a final EOF.
			 */
			return EOB_ACT_END_OF_FILE;
			}

		else
			{
			/* We matched some text prior to the EOB, first
			 * process it.
			 */
			return EOB_ACT_LAST_MATCH;
			}
		}

	/* Try to read more data. */

	/* First move last chars to start of buffer. */
	number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1;

	for ( i = 0; i < number_to_move; ++i )
		*(dest++) = *(source++);

	if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING )
		/* don't do the read, it's not guaranteed to return an EOF,
		 * just force an EOF
		 */
		yy_n_chars = 0;

	else
		{
		int num_to_read =
			yy_current_buffer->yy_buf_size - number_to_move - 1;

		while ( num_to_read <= 0 )
			{ /* Not enough room in the buffer - grow it. */
#ifdef YY_USES_REJECT
			YY_FATAL_ERROR(
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
#else

			/* just a shorter name for the current buffer */
			YY_BUFFER_STATE b = yy_current_buffer;

			int yy_c_buf_p_offset =
				(int) (yy_c_buf_p - b->yy_ch_buf);

			if ( b->yy_is_our_buffer )
				{
				int new_size = b->yy_buf_size * 2;

				if ( new_size <= 0 )
					b->yy_buf_size += b->yy_buf_size / 8;
				else
					b->yy_buf_size *= 2;

				b->yy_ch_buf = (char *)
					/* Include room in for 2 EOB chars. */
					yy_flex_realloc( (void *) b->yy_ch_buf,
							 b->yy_buf_size + 2 );
				}
			else
				/* Can't grow it, we don't own it. */
				b->yy_ch_buf = 0;

			if ( ! b->yy_ch_buf )
				YY_FATAL_ERROR(
				"fatal error - scanner input buffer overflow" );

			yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset];

			num_to_read = yy_current_buffer->yy_buf_size -
						number_to_move - 1;
#endif
			}

		if ( num_to_read > YY_READ_BUF_SIZE )
			num_to_read = YY_READ_BUF_SIZE;

		/* Read in more data. */
		YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]),
			yy_n_chars, num_to_read );
		}

	if ( yy_n_chars == 0 )
		{
		if ( number_to_move == YY_MORE_ADJ )
			{
			ret_val = EOB_ACT_END_OF_FILE;
			yyrestart( yyin );
			}

		else
			{
			ret_val = EOB_ACT_LAST_MATCH;
			yy_current_buffer->yy_buffer_status =
				YY_BUFFER_EOF_PENDING;
			}
		}

	else
		ret_val = EOB_ACT_CONTINUE_SCAN;

	yy_n_chars += number_to_move;
	yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
	yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;

	yytext_ptr = &yy_current_buffer->yy_ch_buf[0];

	return ret_val;
	}


/* yy_get_previous_state - get the state just before the EOB char was reached */

static yy_state_type yy_get_previous_state()
	{
	register yy_state_type yy_current_state;
	register char *yy_cp;

	yy_current_state = yy_start;

	for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp )
		{
		register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
		if ( yy_accept[yy_current_state] )
			{
			yy_last_accepting_state = yy_current_state;
			yy_last_accepting_cpos = yy_cp;
			}
		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
			{
			yy_current_state = (int) yy_def[yy_current_state];
			if ( yy_current_state >= 78 )
				yy_c = yy_meta[(unsigned int) yy_c];
			}
		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
		}

	return yy_current_state;
	}


/* yy_try_NUL_trans - try to make a transition on the NUL character
 *
 * synopsis
 *	next_state = yy_try_NUL_trans( current_state );
 */

#ifdef YY_USE_PROTOS
static yy_state_type yy_try_NUL_trans( yy_state_type yy_current_state )
#else
static yy_state_type yy_try_NUL_trans( yy_current_state )
yy_state_type yy_current_state;
#endif
	{
	register int yy_is_jam;
	register char *yy_cp = yy_c_buf_p;

	register YY_CHAR yy_c = 1;
	if ( yy_accept[yy_current_state] )
		{
		yy_last_accepting_state = yy_current_state;
		yy_last_accepting_cpos = yy_cp;
		}
	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
		{
		yy_current_state = (int) yy_def[yy_current_state];
		if ( yy_current_state >= 78 )
			yy_c = yy_meta[(unsigned int) yy_c];
		}
	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
	yy_is_jam = (yy_current_state == 77);

	return yy_is_jam ? 0 : yy_current_state;
	}


#ifndef YY_NO_UNPUT
#ifdef YY_USE_PROTOS
static void yyunput( int c, register char *yy_bp )
#else
static void yyunput( c, yy_bp )
int c;
register char *yy_bp;
#endif
	{
	register char *yy_cp = yy_c_buf_p;

	/* undo effects of setting up yytext */
	*yy_cp = yy_hold_char;

	if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
		{ /* need to shift things up to make room */
		/* +2 for EOB chars. */
		register int number_to_move = yy_n_chars + 2;
		register char *dest = &yy_current_buffer->yy_ch_buf[
					yy_current_buffer->yy_buf_size + 2];
		register char *source =
				&yy_current_buffer->yy_ch_buf[number_to_move];

		while ( source > yy_current_buffer->yy_ch_buf )
			*--dest = *--source;

		yy_cp += (int) (dest - source);
		yy_bp += (int) (dest - source);
		yy_n_chars = yy_current_buffer->yy_buf_size;

		if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
			YY_FATAL_ERROR( "flex scanner push-back overflow" );
		}

	*--yy_cp = (char) c;


	yytext_ptr = yy_bp;
	yy_hold_char = *yy_cp;
	yy_c_buf_p = yy_cp;
	}
#endif	/* ifndef YY_NO_UNPUT */


#ifdef __cplusplus
static int yyinput()
#else
static int input()
#endif
	{
	int c;

	*yy_c_buf_p = yy_hold_char;

	if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
		{
		/* yy_c_buf_p now points to the character we want to return.
		 * If this occurs *before* the EOB characters, then it's a
		 * valid NUL; if not, then we've hit the end of the buffer.
		 */
		if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] )
			/* This was really a NUL. */
			*yy_c_buf_p = '\0';

		else
			{ /* need more input */
			yytext_ptr = yy_c_buf_p;
			++yy_c_buf_p;

			switch ( yy_get_next_buffer() )
				{
				case EOB_ACT_END_OF_FILE:
					{
					if ( yywrap() )
						{
						yy_c_buf_p =
						yytext_ptr + YY_MORE_ADJ;
						return EOF;
						}

					if ( ! yy_did_buffer_switch_on_eof )
						YY_NEW_FILE;
#ifdef __cplusplus
					return yyinput();
#else
					return input();
#endif
					}

				case EOB_ACT_CONTINUE_SCAN:
					yy_c_buf_p = yytext_ptr + YY_MORE_ADJ;
					break;

				case EOB_ACT_LAST_MATCH:
#ifdef __cplusplus
					YY_FATAL_ERROR(
					"unexpected last match in yyinput()" );
#else
					YY_FATAL_ERROR(
					"unexpected last match in input()" );
#endif
				}
			}
		}

	c = *(unsigned char *) yy_c_buf_p;	/* cast for 8-bit char's */
	*yy_c_buf_p = '\0';	/* preserve yytext */
	yy_hold_char = *++yy_c_buf_p;


	return c;
	}


#ifdef YY_USE_PROTOS
void yyrestart( FILE *input_file )
#else
void yyrestart( input_file )
FILE *input_file;
#endif
	{
	if ( ! yy_current_buffer )
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );

	yy_init_buffer( yy_current_buffer, input_file );
	yy_load_buffer_state();
	}


#ifdef YY_USE_PROTOS
void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
#else
void yy_switch_to_buffer( new_buffer )
YY_BUFFER_STATE new_buffer;
#endif
	{
	if ( yy_current_buffer == new_buffer )
		return;

	if ( yy_current_buffer )
		{
		/* Flush out information for old buffer. */
		*yy_c_buf_p = yy_hold_char;
		yy_current_buffer->yy_buf_pos = yy_c_buf_p;
		yy_current_buffer->yy_n_chars = yy_n_chars;
		}

	yy_current_buffer = new_buffer;
	yy_load_buffer_state();

	/* We don't actually know whether we did this switch during
	 * EOF (yywrap()) processing, but the only time this flag
	 * is looked at is after yywrap() is called, so it's safe
	 * to go ahead and always set it.
	 */
	yy_did_buffer_switch_on_eof = 1;
	}


#ifdef YY_USE_PROTOS
void yy_load_buffer_state( void )
#else
void yy_load_buffer_state()
#endif
	{
	yy_n_chars = yy_current_buffer->yy_n_chars;
	yytext_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
	yyin = yy_current_buffer->yy_input_file;
	yy_hold_char = *yy_c_buf_p;
	}


#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_create_buffer( FILE *file, int size )
#else
YY_BUFFER_STATE yy_create_buffer( file, size )
FILE *file;
int size;
#endif
	{
	YY_BUFFER_STATE b;

	b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

	b->yy_buf_size = size;

	/* yy_ch_buf has to be 2 characters longer than the size given because
	 * we need to put in 2 end-of-buffer characters.
	 */
	b->yy_ch_buf = (char *) yy_flex_alloc( b->yy_buf_size + 2 );
	if ( ! b->yy_ch_buf )
		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );

	b->yy_is_our_buffer = 1;

	yy_init_buffer( b, file );

	return b;
	}


#ifdef YY_USE_PROTOS
void yy_delete_buffer( YY_BUFFER_STATE b )
#else
void yy_delete_buffer( b )
YY_BUFFER_STATE b;
#endif
	{
	if ( ! b )
		return;

	if ( b == yy_current_buffer )
		yy_current_buffer = (YY_BUFFER_STATE) 0;

	if ( b->yy_is_our_buffer )
		yy_flex_free( (void *) b->yy_ch_buf );

	yy_flex_free( (void *) b );
	}


#ifndef YY_ALWAYS_INTERACTIVE
#ifndef YY_NEVER_INTERACTIVE
extern int isatty YY_PROTO(( int ));
#endif
#endif

#ifdef YY_USE_PROTOS
void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
#else
void yy_init_buffer( b, file )
YY_BUFFER_STATE b;
FILE *file;
#endif


	{
	yy_flush_buffer( b );

	b->yy_input_file = file;
	b->yy_fill_buffer = 1;

#if YY_ALWAYS_INTERACTIVE
	b->yy_is_interactive = 1;
#else
#if YY_NEVER_INTERACTIVE
	b->yy_is_interactive = 0;
#else
	b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
#endif
#endif
	}


#ifdef YY_USE_PROTOS
void yy_flush_buffer( YY_BUFFER_STATE b )
#else
void yy_flush_buffer( b )
YY_BUFFER_STATE b;
#endif

	{
	b->yy_n_chars = 0;

	/* We always need two end-of-buffer characters.  The first causes
	 * a transition to the end-of-buffer state.  The second causes
	 * a jam in that state.
	 */
	b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
	b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;

	b->yy_buf_pos = &b->yy_ch_buf[0];

	b->yy_at_bol = 1;
	b->yy_buffer_status = YY_BUFFER_NEW;

	if ( b == yy_current_buffer )
		yy_load_buffer_state();
	}


#ifndef YY_NO_SCAN_BUFFER
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size )
#else
YY_BUFFER_STATE yy_scan_buffer( base, size )
char *base;
yy_size_t size;
#endif
	{
	YY_BUFFER_STATE b;

	if ( size < 2 ||
	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
	     base[size-1] != YY_END_OF_BUFFER_CHAR )
		/* They forgot to leave room for the EOB's. */
		return 0;

	b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) );
	if ( ! b )
		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );

	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
	b->yy_buf_pos = b->yy_ch_buf = base;
	b->yy_is_our_buffer = 0;
	b->yy_input_file = 0;
	b->yy_n_chars = b->yy_buf_size;
	b->yy_is_interactive = 0;
	b->yy_at_bol = 1;
	b->yy_fill_buffer = 0;
	b->yy_buffer_status = YY_BUFFER_NEW;

	yy_switch_to_buffer( b );

	return b;
	}
#endif


#ifndef YY_NO_SCAN_STRING
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_string( yyconst char *str )
#else
YY_BUFFER_STATE yy_scan_string( str )
yyconst char *str;
#endif
	{
	int len;
	for ( len = 0; str[len]; ++len )
		;

	return yy_scan_bytes( str, len );
	}
#endif


#ifndef YY_NO_SCAN_BYTES
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len )
#else
YY_BUFFER_STATE yy_scan_bytes( bytes, len )
yyconst char *bytes;
int len;
#endif
	{
	YY_BUFFER_STATE b;
	char *buf;
	yy_size_t n;
	int i;

	/* Get memory for full buffer, including space for trailing EOB's. */
	n = len + 2;
	buf = (char *) yy_flex_alloc( n );
	if ( ! buf )
		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );

	for ( i = 0; i < len; ++i )
		buf[i] = bytes[i];

	buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;

	b = yy_scan_buffer( buf, n );
	if ( ! b )
		YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );

	/* It's okay to grow etc. this buffer, and we should throw it
	 * away when we're done.
	 */
	b->yy_is_our_buffer = 1;

	return b;
	}
#endif


#ifndef YY_NO_PUSH_STATE
#ifdef YY_USE_PROTOS
static void yy_push_state( int new_state )
#else
static void yy_push_state( new_state )
int new_state;
#endif
	{
	if ( yy_start_stack_ptr >= yy_start_stack_depth )
		{
		yy_size_t new_size;

		yy_start_stack_depth += YY_START_STACK_INCR;
		new_size = yy_start_stack_depth * sizeof( int );

		if ( ! yy_start_stack )
			yy_start_stack = (int *) yy_flex_alloc( new_size );

		else
			yy_start_stack = (int *) yy_flex_realloc(
					(void *) yy_start_stack, new_size );

		if ( ! yy_start_stack )
			YY_FATAL_ERROR(
			"out of memory expanding start-condition stack" );
		}

	yy_start_stack[yy_start_stack_ptr++] = YY_START;

	BEGIN(new_state);
	}
#endif


#ifndef YY_NO_POP_STATE
static void yy_pop_state()
	{
	if ( --yy_start_stack_ptr < 0 )
		YY_FATAL_ERROR( "start-condition stack underflow" );

	BEGIN(yy_start_stack[yy_start_stack_ptr]);
	}
#endif


#ifndef YY_NO_TOP_STATE
static int yy_top_state()
	{
	return yy_start_stack[yy_start_stack_ptr - 1];
	}
#endif

#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif

#ifdef YY_USE_PROTOS
static void yy_fatal_error( yyconst char msg[] )
#else
static void yy_fatal_error( msg )
char msg[];
#endif
	{
	(void) fprintf( stderr, "%s\n", msg );
	exit( YY_EXIT_FAILURE );
	}



/* Redefine yyless() so it works in section 3 code. */

#undef yyless
#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
		yytext[yyleng] = yy_hold_char; \
		yy_c_buf_p = yytext + n - YY_MORE_ADJ; \
		yy_hold_char = *yy_c_buf_p; \
		*yy_c_buf_p = '\0'; \
		yyleng = n; \
		} \
	while ( 0 )


/* Internal utility routines. */

#ifndef yytext_ptr
#ifdef YY_USE_PROTOS
static void yy_flex_strncpy( char *s1, yyconst char *s2, int n )
#else
static void yy_flex_strncpy( s1, s2, n )
char *s1;
yyconst char *s2;
int n;
#endif
	{
	register int i;
	for ( i = 0; i < n; ++i )
		s1[i] = s2[i];
	}
#endif


#ifdef YY_USE_PROTOS
static void *yy_flex_alloc( yy_size_t size )
#else
static void *yy_flex_alloc( size )
yy_size_t size;
#endif
	{
	return (void *) malloc( size );
	}

#ifdef YY_USE_PROTOS
static void *yy_flex_realloc( void *ptr, yy_size_t size )
#else
static void *yy_flex_realloc( ptr, size )
void *ptr;
yy_size_t size;
#endif
	{
	/* The cast to (char *) in the following accommodates both
	 * implementations that use char* generic pointers, and those
	 * that use void* generic pointers.  It works with the latter
	 * because both ANSI C and C++ allow castless assignment from
	 * any pointer type to void*, and deal with argument conversions
	 * as though doing an assignment.
	 */
	return (void *) realloc( (char *) ptr, size );
	}

#ifdef YY_USE_PROTOS
static void yy_flex_free( void *ptr )
#else
static void yy_flex_free( ptr )
void *ptr;
#endif
	{
	free( ptr );
	}

#if YY_MAIN
int main()
	{
	yylex();
	return 0;
	}
#endif


/*
 * lexer_errposition
 *		Report a lexical-analysis-time cursor position, if possible.
 *
 * This is expected to be used within an ereport() call.  The return value
 * is a dummy (always 0, in fact).
 *
 * Note that this can only be used for messages from the lexer itself,
 * since it depends on scanbuf to still be valid.
 */
static int
lexer_errposition(void)
{
  /*int pos;*/

  /* Convert byte offset to character number 
  pos = op_mbstrlen_with_len(scanbuf, yylloc) + 1;*/
  /* And pass it to the ereport mechanism 
  return errposition(pos);*/
  return 0;
}

/*
 * yyerror
 *		Report a lexer or grammar error.
 *
 * The message's cursor position identifies the most recently lexed token.
 * This is OK for syntax error messages from the Bison parser, because Bison
 * parsers report error as soon as the first unparsable token is reached.
 * Beware of using yyerror for other purposes, as the cursor position might
 * be misleading!
 */
void
yyerror(const char *message)
{
    printf("%s", message);
}

/*
 * Called before any actual parsing is done
 */
void scanner_init(const char *str)
{
  Size slen = strlen(str);

  /*
   * Might be left over after ereport()
   */
  if (YY_CURRENT_BUFFER)
  yy_delete_buffer(YY_CURRENT_BUFFER);

  /*
   * Make a scan buffer with special termination needed by flex.
   */
  scanbuf = malloc(slen + 2);
  memcpy(scanbuf, str, slen);
  scanbuf[slen] = scanbuf[slen + 1] = YY_END_OF_BUFFER_CHAR;
  scanbufhandle = yy_scan_buffer(scanbuf, slen + 2);

  /* initialize literal buffer to a reasonable but expansible size */
  literalalloc = 1024;
  literalbuf = (char *) malloc(literalalloc);
  startlit();

  BEGIN(INITIAL);
}

/*
 * Called after parsing is done to clean up after scanner_init()
 */
void scanner_finish(void)
{
  yy_delete_buffer(scanbufhandle);
  free(scanbuf);
  scanbuf = NULL;
}

static void addlit(char *ytext, int yleng)
{
  /* enlarge buffer if needed */
  if ((literallen+yleng) >= literalalloc)
  {
    do {
      literalalloc *= 2;
    } while ((literallen+yleng) >= literalalloc);
    literalbuf = (char *) realloc(literalbuf, literalalloc);
  }
  /* append new data, add trailing null */
  memcpy(literalbuf+literallen, ytext, yleng);
  literallen += yleng;
  literalbuf[literallen] = '\0';
}

static void addlitchar(unsigned char ychar)
{
  /* enlarge buffer if needed */
  if ((literallen+1) >= literalalloc)
  {
    literalalloc *= 2;
    literalbuf = (char *) realloc(literalbuf, literalalloc);
  }
  /* append new data, add trailing null */
  literalbuf[literallen] = ychar;
  literallen += 1;
  literalbuf[literallen] = '\0';
}

/*
 * One might be tempted to write strdup(literalbuf) instead of this,
 * but for long literals this is much faster because the length is
 * already known.
 */
static char *litbufdup(void)
{
  char *new;

  new = malloc(literallen + 1);
  memcpy(new, literalbuf, literallen+1);
  return new;
}

static unsigned char unescape_single_char(unsigned char c)
{
  /* Normally we wouldn't expect to see \n where n has its high bit set
   * but we set the flag to check the string if we do get it, so
   * that this doesn't become a way of getting around the coding validity
   * checks.
   */
  if (IS_HIGHBIT_SET(c))
    saw_non_ascii = true;

  switch (c)
  {
  case 'b':
    return '\b';
  case 'f':
    return '\f';
  case 'n':
    return '\n';
  case 'r':
    return '\r';
  case 't':
    return '\t';
  default:
    return c;
  }
}
